Intel X25-M SSD Shows Long-term Fragmentation Issue

mainstream_ssdsSaving up the $379 or so to get an 80GB Intel X25-M Solid State Disk drive? It’s great that you want to help the global economy with more spending, but you might want to hold up that purchase. PC Perspective has an extensive, longer-term review of the 2.5-inch SSD drive that’s worth a read. Just be sure you don’t have anything on the stove when you start reading; it took me a good 20-minutes to get through. Did I mention it was extensive?

Here’s the skinny from Ars: Intel’s  wear-leveling algorithms and write combining approaches appear to cause nearly irreparable fragmentation. That bogs down performance over time on the MLC unit. I say “nearly” irreparable because you can fix the fragmentation issue: by completely wiping the drive. Yikes! How bad can performance get over time? Normal performance is a peppy 250MBps for reads and 80MBps for writes. Here’s a pic of the reads and writes over time:


That’s a huge performance hit. I highly recommend the PC Perspective article, even if you’re not in the market for Intel’s X25-M drive. And if you do plan to buy one, this is a must-read; Even if it is extensive.


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